Retrieve Slide Block Metadata via Webhook
Send a webhook with a Notion block ID and get back full metadata: content, properties, child blocks, and structure, all in your workflow.
Trigger
Webhook received
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Action
Fetch Notion block metadata
Fetches metadata for a notion block (or page, as pages are blocks) using its valid uuid; if the block has children, use fetch block contents to fetch their contents.
Why this helps
Understanding Notion block structure requires clicking through pages. This webhook brings block metadata to you programmatically, supporting integrations and automations.
- Fetch block structure without opening Notion
- Support programmatic access to block data
- Build custom integrations with Notion blocks
- Understand block hierarchy and properties
Setup
Build it in a few focused steps.
- 1Connect Google Slides and Notion integrations
- 2Create automation: 'When I send a webhook with a block ID, return full metadata for that Notion block'
- 3Specify what metadata to return (content, type, children, properties, etc.)
- 4Select 'Webhook' as the trigger and copy your webhook URL
- 5From any tool, send the webhook with a block ID to retrieve its metadata
Questions about this workflow
How do I get a block ID?
Block IDs are UUIDs in Notion URLs or returned by other Notion API calls. Ask Notis 'get the block ID for [page name]' to find it easily.
Will this return child block information?
Yes. Notis returns the block's direct children and can recursively fetch nested blocks if you request it.
Can I use this to build integrations?
Yes. This webhook returns structured metadata that you can use in custom integrations, scripts, or other tools.
Is there a limit to block metadata returned?
Notis returns all available metadata for the block and its immediate children. For deeply nested blocks, pagination may be used.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Google Slides to Notion. A trigger fires from one place; an action lands in another.
Google Slides triggers
Notion actions
New Slide Added
Fires when a new slide is added to a Google Slides presentation.
Add multiple content blocks (bulk, user-friendly)
Efficiently adds multiple standard content blocks to a notion page in a single api call with automatic markdown parsing. the 'content' field in notionrichtext blocks now automatically detects and parses markdown formatting including headers (# ## ###), bold (**text**), italic (*text*), strikethrough (~~text~~), inline code (`code`), links ([text](url)), and more. ideal for bulk content creation, ai agents, and replacing multiple individual add page content calls. supports automatic text formatting, content splitting, and up to 100 blocks per request.
Add content to Notion page
Deprecated: appends a single content block to a notion page or a parent block (must be page, toggle, to-do, bulleted/numbered list, callout, or quote); invoke repeatedly to add multiple blocks.
Append complex blocks (advanced, full control)
Appends complex blocks with full notion block structure to a parent block or page. use for advanced scenarios requiring precise control: code blocks, tables, embeds, nested children within blocks, or when working with pre-built notion block objects. requires full notion api block schema - use add multiple page content for simpler content creation.
Archive Notion Page
Archives (moves to trash) or unarchives (restores from trash) a specified notion page.
Create comment
Adds a comment to a notion page (via `parent page id`) or to an existing discussion thread (via `discussion id`); cannot create new discussion threads on specific blocks (inline comments).
Create Notion Database
Creates a new notion database as a subpage under a specified parent page with a defined properties schema; use this action exclusively for creating new databases.
Create Notion page
Creates a new empty page in a notion workspace.
Delete a block
Archives a notion block, page, or database using its id, which sets its 'archived' property to true (like moving to "trash" in the ui) and allows it to be restored later.
Connect any two apps with Notis in the middle.
Not just Google Slides and Notion. Any combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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